m1 request with classifier in version is not parsed as expected

I have a lib that is built by maven2. It also has a retrotranslator version, with classifier "-backport", as part of the build process.

When I try to get this lib from archiva, I get a 404, as the m1 path
"org.jmonit/jars/jmonit-1.0-alpha-1-SNAPSHOT-backport.jar"
gets converted to
"org/jmonit/jmonit/1.0-alpha-1-SNAPSHOT-backport/jmonit-1.0-alpha-1-SNAPSHOT-backport.jar"
and not
"org/jmonit/jmonit/1.0-alpha-1-SNAPSHOT/jmonit-1.0-alpha-1-SNAPSHOT-backport.jar"

I've no other example in mind of an artifact with a classifier in central to test with a non-SNAPSHOT.